198711940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1419371}}^1$

素因数の和:1419387

約数の個数: 24

約数和(自身を含む): 476908992

約数和(自身を除く): 278197052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1419371, 2838742, 5677484, 7096855, 9935597, 14193710, 19871194, 28387420, 39742388, 49677985, 99355970, 198711940]

約数ペア:

[(1, 198711940), (2, 99355970), (4, 49677985), (5, 39742388), (7, 28387420), (10, 19871194), (14, 14193710), (20, 9935597), (28, 7096855), (35, 5677484), (70, 2838742), (140, 1419371)]